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[DISCUSS] Unbrick Zenfone 5Z (ZS620KL) with QMSCT Qualcomm 9008

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Sorry for my poor English, I'm a Taiwanese :P

Let's talk about something that bricking and unbricking this device...

I've got a Zenfone 5Z (ZS620KL) at version 80.30.96.111 and want to unlock the bootloader but get a error while using official unlock app.
And I found some article saying that it will only work at older version e.g. 80.11.37.49.
Thus, I tried to downgrade to version 80.10.8.54 and follow the guide from here.
https://forum.xda-developers.com/zen...grade-t3815877

Guess what? I totally bricked this device and get black screen, with vol down + power button get vibrate only.
So, I went to ASUS official repair store and they want charge me about USD $300 to replace the motherboard, but I said no and told them I will try to revive this device by myself.

I made a special USB TYPE-C cable (as xiaomi edl usb cable) to let device boot into Qualcomm 9008 mode and follow this guide to revive this device.
https://www.firmware27.com/2018/05/f...s-zs620kl.html (Draco_ZS620KL_QMSCT_download.pdf (Tutorial Flashing))

Here is the detail that unbricking this device

1. Download "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw.zip"
2. Download "CSC-ZS620KL-80.02.237.70-FAC-eng-20180810191100-factory.zip"
3. Unzip "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw.zip"
4. Install python 2.7
5. Goto directory /WW_ZS620KL_80.30.96.111_MR2_20180921002943_release-user.raw/factory_for_QMSCT
6. Execute "unparse_img.bat"
7. Extract "fs_image.tar.gz.mbn.img" from "CSC-ZS620KL-80.02.237.70-FAC-eng-20180810191100-factory.zip" to "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw" folder
8. Run QMSCT and follow the steps in "Draco_ZS620KL_QMSCT_download.pdf"
9. If success, hold vold down + power button to reboot, it will show the splash screen
10. Reboot to bootloader and use AFT v1.0.0.71 to flash "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw.zip" again
11. Reboot and get a fully functional device back

Conclusion: DO NOT DOWNGRADE TO 80.10.8.54 TO PREVENT THIS

The gallery
https://imgur.com/a/7oyswfC





















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13th January 2019, 05:00 PM |#2  
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Does your guide relocks the bootloader back?

Sent from my ASUS_Z01RD using Tapatalk
13th January 2019, 05:52 PM |#3  
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I wants to relock bootloader
Quote:
Originally Posted by sabpprook

Sorry for my poor English, I'm a Taiwanese :P

Let's talk about something that bricking and unbricking this device...

I've got a Zenfone 5Z (ZS620KL) at version 80.30.96.111 and want to unlock the bootloader but get a error while using official unlock app.
And I found some article saying that it will only work at older version e.g. 80.11.37.49.
Thus, I tried to downgrade to version 80.10.8.54 and follow the guide from here.
https://forum.xda-developers.com/zen...grade-t3815877

Guess what? I totally bricked this device and get black screen, with vol down + power button get vibrate only.
So, I went to ASUS official repair store and they want charge me about USD $300 to replace the motherboard, but I said no and told them I will try to revive this device by myself.

I made a special USB TYPE-C cable (as xiaomi edl usb cable) to let device boot into Qualcomm 9008 mode and follow this guide to revive this device.
https://www.firmware27.com/2018/05/f...s-zs620kl.html (Draco_ZS620KL_QMSCT_download.pdf (Tutorial Flashing))

Here is the detail that unbricking this device

1. Download "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw.zip"
2. Download "CSC-ZS620KL-80.02.237.70-FAC-eng-20180810191100-factory.zip"
3. Unzip "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw.zip"
4. Install python 2.7
5. Goto directory /WW_ZS620KL_80.30.96.111_MR2_20180921002943_release-user.raw/factory_for_QMSCT
6. Execute "unparse_img.bat"
7. Extract "fs_image.tar.gz.mbn.img" from "CSC-ZS620KL-80.02.237.70-FAC-eng-20180810191100-factory.zip" to "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw" folder
8. Run QMSCT and follow the steps in "Draco_ZS620KL_QMSCT_download.pdf"
9. If success, hold vold down + power button to reboot, it will show the splash screen
10. Reboot to bootloader and use AFT v1.0.0.71 to flash "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw.zip" again
11. Reboot and get a fully functional device back

Conclusion: DO NOT DOWNGRADE TO 80.10.8.54 TO PREVENT THIS

The gallery
https://imgur.com/a/7oyswfC





















Please sir i help me i wants to relock i will pay some for that
13th January 2019, 06:57 PM |#4  
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Does it relock bootloader
Relock bootloader
14th January 2019, 02:48 AM |#5  
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Where i can find your flashtool version? Mine don't see ZS620KL
14th January 2019, 06:07 AM |#6  
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Thanks a lot for this informative guide. You have been an angel to all the 5z users.
God bless you.!!
14th January 2019, 06:45 AM |#7  
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Finally, you wants to flash it
Quote:
Originally Posted by sabpprook

Sorry for my poor English, I'm a Taiwanese :P

Let's talk about something that bricking and unbricking this device...

I've got a Zenfone 5Z (ZS620KL) at version 80.30.96.111 and want to unlock the bootloader but get a error while using official unlock app.
And I found some article saying that it will only work at older version e.g. 80.11.37.49.
Thus, I tried to downgrade to version 80.10.8.54 and follow the guide from here.
https://forum.xda-developers.com/zen...grade-t3815877

Guess what? I totally bricked this device and get black screen, with vol down + power button get vibrate only.
So, I went to ASUS official repair store and they want charge me about USD $300 to replace the motherboard, but I said no and told them I will try to revive this device by myself.

I made a special USB TYPE-C cable (as xiaomi edl usb cable) to let device boot into Qualcomm 9008 mode and follow this guide to revive this device.
https://www.firmware27.com/2018/05/f...s-zs620kl.html (Draco_ZS620KL_QMSCT_download.pdf (Tutorial Flashing))

Here is the detail that unbricking this device

1. Download "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw.zip"
2. Download "CSC-ZS620KL-80.02.237.70-FAC-eng-20180810191100-factory.zip"
3. Unzip "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw.zip"
4. Install python 2.7
5. Goto directory /WW_ZS620KL_80.30.96.111_MR2_20180921002943_release-user.raw/factory_for_QMSCT
6. Execute "unparse_img.bat"
7. Extract "fs_image.tar.gz.mbn.img" from "CSC-ZS620KL-80.02.237.70-FAC-eng-20180810191100-factory.zip" to "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw" folder
8. Run QMSCT and follow the steps in "Draco_ZS620KL_QMSCT_download.pdf"
9. If success, hold vold down + power button to reboot, it will show the splash screen
10. Reboot to bootloader and use AFT v1.0.0.71 to flash "WW_ZS620KL_80.30.96.111_MR2_20180921002943_releas e-user.raw.zip" again
11. Reboot and get a fully functional device back

Conclusion: DO NOT DOWNGRADE TO 80.10.8.54 TO PREVENT THIS

The gallery
https://imgur.com/a/7oyswfC





















Haaaa,thess steps are ridiculously because at the end you flash your device with files which yoy build yourself, why not you chose raw image instead that , that file be around 2gb, it will be easy for flashing,
14th January 2019, 07:39 AM |#8  
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Quote:
Originally Posted by Cheeda212

Haaaa,thess steps are ridiculously because at the end you flash your device with files which yoy build yourself, why not you chose raw image instead that , that file be around 2gb, it will be easy for flashing,

It is able to flash raw firmware while device under qualcomm 9008?
16th January 2019, 09:00 AM |#9  
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Quote:
Originally Posted by MystikMan97130



Where i can find your flashtool version? Mine don't see ZS620KL

Here you are
https://drive.google.com/open?id=1kB...KRkC-Qj_23yFTh
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16th January 2019, 02:35 PM |#10  
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Quote:
Originally Posted by sabpprook

Here you are
https://drive.google.com/open?id=1kB...KRkC-Qj_23yFTh

Thanks Man
16th January 2019, 05:44 PM |#11  
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sabpprook
Can U put all files Your used in one place ?
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